Syrian President Bashar al-Assad has again denied using chemical weapons, in an interview with the American network CBS.

"There has been no evidence that I used chemical weapons against my own people," Assad said in the interview conducted in Damascus.

The full interview aired on the CBS network and PBS's Charlie Rose show on Monday. Report by Jeremy Barnes

German intelligence - Assad didn't authorize chemical attack

[Viewers may find some scenes towards the beginning of this video to be disturbing.]

As John Kerry continues his EU tour and lobbying of Congress intensifies, graphic and distressing video is shown to senators and given to US TV networks to "make it clear to people that these are real human beings, real children."